The TB3550 is a Dual Lock™ Reclosable Fastener designed for use in a variety of attachment solutions. It consists of continuous strips of polyolefin stems with a mushroom shaped top protruding up from the backing. When snapped together the mushroom shaped caps interlock producing a strong reliable fastener. The pressure sensitive adhesive makes the Dual Lock reclosable fastener easy to use. Simply remove the liner, place the Dual Lock reclosable fastener and apply firm, consistent pressure to assure good contact with the substrate you are adhering.